Harrington Hoists M3 Item, Method, Action, 5.6Inspection Records, Discard Limit/Criteria, 5.5Occasionally Used Hoists, 5.7Inspection Methods and Criteria

5.5Occasionally Used Hoists

5.5.1Hoists that are used infrequently shall be inspected as follows prior to placing in service:

Hoist Idle More Than 1 Month, Less Than 1 Year: Inspect per FREQUENT Inspection criteria in Section 5.3.

Hoist Idle More Than 1 Year: Inspect per PERIODIC Inspection criteria in Section 5.4.

5.6Inspection Records

5.6.1Dated inspection reports and records should be maintained at time intervals corresponding to those that apply for the hoist’s PERIODIC interval per Section 5.2.4. These records should be stored where they are available to personnel involved with the inspection, maintenance, or operation of the hoist.

5.6.2A long range chain inspection program should be established and should include records of examination of chains removed from service so a relationship can be established between visual observation and actual condition of the chain.

5.7Inspection Methods and Criteria

5.7.1This section covers the inspection of specific items. The list of items in this section is based on those listed in ANSI/ASME B30.16 for the Frequent and Periodic Inspection.

5.7.2Frequent Inspection - Not intended to involve disassembly of the hoist. Disassembly for further inspection would be required only if frequent inspection results so indicate. Disassembly and further inspection should only be performed by a qualified person trained in the disassembly and re-assembly of the hoist.

5.7.3Periodic Inspection - Disassembly of the hoist is required. Disassambly should only be performed by a qualified person trained in the disassembly and re-assembly of the hoist.

Table 5-3 Hoist Inspection Methods and Criteria

Item	Method	Discard Limit/Criteria	Action
Functional operating	Visual, Auditory	Mechanisms should be properly adjusted and	Repair or replace
mechanisms.		should not produce unusual sounds when operated.	as required.
		Components should not be deformed, scarred, or
		show significant wear. Refer to Figures 5-2, 5-3 and
		5-4.
Hooks – Stretch	Measure	The "k" dimension should not be greater than 1.05	Replace.
		times that measured and recorded at the time of
		purchase (See Section 3.4). If recorded "k" values
		are not available for hooks when new, use nominal
		"k" values from Table 5-4.
Hooks – Fretting	Measure	The "u" and "t" dimensions should not be less than	Replace.
wear		discard value listed in Table 5-4.
Hooks – Surface	Visual	Should be free of gouges, deep nicks, dents, weld	Replace.
Condition		splatter, and significant corrosion.
Hooks –	Visual	Should be free of twists and deformations. See	Replace.
Deformation		Figure 5-1.
Hooks – Bent Shank	Visual	Shank and neck portions of hook should be free of	Replace.
or Neck		deformations.
Hooks – Swivel	Visual, Function	Bearing parts and surfaces should not show	Clean/lubricate, or
		significant wear, and should be free of dirt, grime,	replace as required.
		and deformations. Hook should rotate freely with no
		roughness. See Figure 5-1.
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